Preexisting
v. 先前存在( preexist的现在分词 )
✅ 同义词
🗣️ 情景例句
How many people are there in your family?
您家有几口人？
May I ask you a question?
我可以问一个问题吗？
I have a letter of introduction here.
我这儿有一封介绍信。